Smoke-consumer.



R. J. JOHNSON.

SMOKE CONSUMER.

APPLICATION man MAY 10. 1911.

1 7,937" Patented Sept. 17, 1918.

2 SHEETSSHEET l.

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1 .{Moon Wanna 0000i) A iNVENTOFi J l F/(fifl/"Q wk/75017 ATTORNEY R. J. JOHNSON.

SMOKE CONSUMER.

APPLICATION FILED MAY 10. 191?.

1,278,937. Patented Sept. 17, 1918.

2 0 2 SHEETS-SHEET 2.

EIIII INVENTOR ATTORNEY s PATENT Application filed May 10, 1917. Serial No. 167,770.

To all whom it may concern:

Be it known that I, RICHARD J. J oHNsoN, a citizen of the United States, residing at Lake Benton, in the county of Lincoln and State of Minnesota, have invented certain new and useful Improvements in Smoke- Consumers, of which the following is a specification.

This invention relates to smoke consumers which may be used in connection with any smoke stack.

The object of the invention is to provide a simple and efficient apparatus of this character which will arrest all smoke issuing from the stack in connection with Which it is used and after mixing and dissolving it in water will discharge it into a sewer or other suitable place of deposit where it will be harmless.

Another object is to provide improved suction means for drawing the smoke from the stack so constructed that all the products of combustion drawn thereinto from the stack will be forced out therefrom.

Another object is to provide an improved mixer for use in connection with this apparatus whereby the smoke and other combustion products discharged thereinto will be effectively, agitated and commingled with water contained therein.

With the foregoing and other objects in View, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it bein understood that changes in the precise em odiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings:

Figure 1, represents a side elevation of a smoke stack equipped with this improved apparatus,

Fig. 2 is a plan view of a portion of the apparatus,

- Fig. 3 is a vertical section through the mixer,

Fig. 4 is a vertical section through one of the fans taken on the line 4-4 of Fig. 2,

Fig. 5 is an enlarged vertical section through the upper end of the smoke stack equipped with the collector constituting a part of this apparatus, and

Fig. 6 is a horizontal section taken on the line 6-6 of Fig. 5.

sectional contour according to the cross sec tional contour of the stack S in connection with which it is to be used and on the upper end of which it is designed to bemounted. As shown, this cap is rectangular in cross section (see Fig. 6) being shaped to fit the upper end of the stack S which is also rec.- tangular in cross section.

nron. 1

Specification of Letters Patent. Patented Sept, 17, 1918, v y

' This double walled cap l is shown composed of sections riveted together, obviously it need i not necessaril structed the outer wall 2 and the inner wall 3 erforated to admit smoke between said wal s, the space between them being closed at its upper end as shown at 4. This cap 1 is mounted on the upper end of the stack S and two conduits 5 and 6 lead from the lower end thereof preferably at diametrically opposite points as shown clearly in Fig. 5 and extend downwardly in parallel relation with the stack S and are connected with said stack by means of clamping bands 7, any desired number of which may be employed according'to the height of the stack in connection with which the apparatus is used.

Suction means in the form of two fan casings 8 and 9 is supported in a frame 10 which may be of any suitable or desired construction, being here shown rectangular in form (see Fig. 2) and mounted on uprights 11, four being employed, one at each corner thereof. This frame 10 is shown disposed at the base of the stack S although obviously it may be placed at any point remote from said stack without in any way affecting the operation of the apparatus. A shaft 12 extends through the fan casings 8 although y be so con belng imperforate and 9 and is mounted in suitable bearings any desired number of which may be employed according to the size of the fan .it is desired to construct and the casing in which it is mounted, twelve being here shown. The blades 16 are mounted on stiffening ribs 17 and are substantially semi-cirends in a downturned cular in cross section to adapt them when rotated to draw in the content-s of the casing from both sides. 4

Leading from the fan casings 8 and 9 are two tubular outlets 18 and 19, which open from the tops of the casings and converge toward each other, merging at their front pipe 20 which discharges into the upper end of a mixer 10 presently to be described. 1 I

The conduits 5 and 6 have right angularly disposed lateral extensions 5 and 6 leading from their lower ends and connected with the fan casings 8 and 9 to discharge into said casings the products of combustion drawn from the collector 1, said extensions being here shown bifurcated.

The shaft 12 projects at one end beyond one side of frame 10 and has fixed thereto pinion 21 which meshes with a gear 22 mounted on one'side of frame 10 and with which is connected a pitman 23 WhlCll is designed to connect said gear 22 with a suit able source of power, not shown. Mounted on the other end of shaft 12 between the fan casing 8 and the adjacent side bar of the frame 10 is a worm gear 24which meshes with a worm 25 carried by a shaft 26 rota-' tably mounted in bearings 27 projecting laterally inward from the side member of frame 10. A bevel pinion 28 is fixed to-the front end of shaft 26 and meshes with a bevel gear 39 fixed to a shaft 30 which BX- tends at right angles to shaft 26 and enters one side wall of the mixer 40 as is shown clearly in- Figs. 1 and 2. A sprocket wheel 35 is fixed to shaft 30 outside the mixer 40 and is designed to impart motion to a fan driving shaft 32 by means of a sprocket chain 33 which passes also over the sprocket pinion 34 mounted on said shaft 32 (see Figs. 1 and 2).

A bevel pinion 31 is mounted on the inner end of shaft 30 within the mixer 40 and is designed to operate mechanism contained therein and presently described.

A water supply pipe 36 enters the mixer 40 at the lower end thereof, as is shown clearly in Fig. 1 and is connected at its other end with any suitable source of supply, not shown.

The mixer 40, the-details of which are shown in Fig. 3, comprises a closed casing having a discharge outlet 41 at its upper end which is connected by a pipe 42 with a fan casing 37 through which extends the shaft 32 above referred to and which carries a fan (not shown) for a purpose heremafter to be described. A pipe 37"leads from the casing 37 and is designed to be connected with a sewer, not shown, or with any other suitable place of deposit where it is desired to discharge the mixed smoke and water conducted from the mixer 4:0.

The pipe 20 enters mixer 40 from the top thereof andextends to a point near its bottom and is provided at its lower end with lateral oppositely disposed extensions 43 and 44 having upturned mouths 45 through which the products of combustion drawn by the fans 13 fmm the collector 1 are designed to be discharged. Revolubly mounted on the end of the pipe 20 which is disposed within the mixer is an agitator in the form of a plurality of reticulated vanes 46 which radiate from collars 47 and18 mounted on said pipe end 20. Any desired number of these vanes 46 may be employed, four being preferably used and the mouths 45 of the pipe extensions 43 and 44 are disposed adjacent the lower ends of said vanes and are designed to discharge their contents in the path of the vanes so that the revolutions thereof will operate to thoroughly commingle the products so discharged with the water contained in the mixer.

A bevel gear 49 is fixed to the collar 47 and meshes with the bevel pinion 31 carried by shaft 30 and above described, and by means of which motion is imparted to the mixing vanes.

In the operation of this apparatus, motion being imparted to shaft 12 by a source of power, not shown. will cause the fans 13 to rotate within casings 8 and 9 and produce a strong suction through the conduits 5 and 6 and through cap 1 and thereby operate to draw the products of combustion which pass upward through the stack S into said cap and down through said conduits into the fan casings ucts are discharged through the pipes 18 and 19 into pipe 20 and pass downwardly into the water contained in the mixer 40. On reaching the mixer 40, the smoke and other products of combustion are thoroughly commingled with the water in the mixer--40 by the revolutions of the vanes 46. These products of combustion having been thoroughly commingled and dissolved in the water of the mixer pass .out with the water through a pipe 12, being drawn therefrom revolubly from which these prod-' through pipe 37 to a.

37 operates to draw out from the mixer any unmixed smoke that may be' contained therein and ejects it through pipe 37 and discharges it into a sewer or. other place of deposit.

From the foregoing description, taken in connection with the accompanying drawings, the advantages of the construction and of the method of operation will be readily apparent to those skilled in the art to which the invention appertains and while I have described the principle of operation of the invention together with the device'which I now consider to be the best embodiment thereof, I desire to have it understood that the device-shown is merely illustrative and that such changes may be made as are within the scope of the claimed invention.

1. The combination with a smoke stack, of a smoke collector in the form of a double. walled cap adapted to be mounted on said stack and having apertures in its inner wall, conduits leading jromthe lower end of said cap, and means for withdrawing the prod nets of combustion issuing through said,

stack into said cap and through said conduits and for discharging them into a suitable place of deposit.

2. The combination with a smoke stack, of a smoke collector in the form of a double walled cap adapted to be mounted on-said stack and having apertures in its inner wall, conduits lea'ding from the lower end of said cap, suction fans connected with, said conduits, a mixer, a pipe connecting said mixer with said cap, agitating means within said mixer, means for withdrawing the contents from said mixer, and discharging them at a suitable point, and means for operating said fans and said agitating means.

3. The combination with a smoke stack; of a smoke collector adapted to be mounted thereon and communicating therewith, conduits leading from said collector, twin fan casings connected with said conduits, respectlvely, and arranged side by side, discharge pipes leading from said casings converging toward thelr outer ends and merg-.

ing into a common discharge pipe, fans mounted in said casings, a fan driving shaft extending through both of said casings and to which said fans are fixed, a mixer into Whlch said common discharge pipe projects, and means connected to drive said shaft.

4. The combination with a smoke stack, a smoke collector for association therewith, conduits leading from said collector, twin fan casings arranged side by side and connected with said conduits, fans mounted to rotate, within said casings, discharge pipes leading from the upper portions of said casings, a fan driving shaft extending through both of said casingsand to which said fans are fixed, a mixer, a connection between said mixer and said discharge pipes, a fan casing communicating with the upper end of said mixer, a ,fan rotatably mounted in said erasing, a discharge pipe leading from said casing, and means for simultaneously driving said first and last mentioned fans. In testimony whereof I afiix my signature in presence of two witnesses.

RICHARD J. JOHNSON.

Witnesses:

C .W. Swims, JOHN J MURPHY. 

